One study out of University of London showed that multitasking lowers your IQ by around 10 points, while Harvard Medical School declared war on the practice after activity-juggling doctors nearly caused fatal errors in treatment. The case against switching tasks seems pretty open and shut.

But it seems there may be a few exceptions. A very few.

David Strayer, a professor of psychology at the University of Utah, has spent his entire career studying attention and warning against the dangers of multitasking, but to his surprise a few years ago, his research turned up a small segment of the population that defies his dire warnings against task switching. He calls these folks “supertaskers.”